The Pennsylvania Road Begins to Lay New Tracks.

In view of the great crowds expected at the Harvard-Princeton game and the small railroad facilities afforded at Princeton, the Pennsylvania railroad started on Monday to build extra sidings, which when finished will, together with the main track and the siding south of the station, make room for about 70 cars and 7 engines. The new sidings are being built at the curve west of the Brokaw Field and are to be three in number, two east and one west of the main track. About 80 laborers are at work, and it is expected that the improvements will be completed by Friday night at the latest.